static void
test_rend_cache_failure_intro_entry_free(void *data)
{
(void)data;
rend_cache_failure_intro_t *entry;
// Handles a null argument
rend_cache_failure_intro_entry_free(NULL);
// Handles a non-null argument
entry = rend_cache_failure_intro_entry_new(INTRO_POINT_FAILURE_TIMEOUT);
rend_cache_failure_intro_entry_free(entry);
}
/** Helper: free a rend cache failure object. */
static void
rend_cache_failure_entry_free(rend_cache_failure_t *entry)
{
if (entry == NULL) {
return;
}
/* Free and remove every intro failure object. */
DIGESTMAP_FOREACH_MODIFY(entry->intro_failures, key,
rend_cache_failure_intro_t *, e) {
rend_cache_failure_intro_entry_free(e);
MAP_DEL_CURRENT(key);
} DIGESTMAP_FOREACH_END;
tor_free(entry);
}
/** Remove all entries that re REND_CACHE_FAILURE_MAX_AGE old. This is
* called every second.
*
* We have to clean these regurlarly else if for whatever reasons an hidden
* service goes offline and a client tries to connect to it during that
* time, a failure entry is created and the client will be unable to connect
* for a while even though the service has return online. */
void
rend_cache_failure_clean(time_t now)
{
time_t cutoff = now - REND_CACHE_FAILURE_MAX_AGE;
STRMAP_FOREACH_MODIFY(rend_cache_failure, key,
rend_cache_failure_t *, ent) {
/* Free and remove every intro failure object that match the cutoff. */
DIGESTMAP_FOREACH_MODIFY(ent->intro_failures, ip_key,
rend_cache_failure_intro_t *, ip_ent) {
if (ip_ent->created_ts < cutoff) {
rend_cache_failure_intro_entry_free(ip_ent);
MAP_DEL_CURRENT(ip_key);
}
} DIGESTMAP_FOREACH_END;
/* If the entry is now empty of intro point failures, remove it. */
if (digestmap_isempty(ent->intro_failures)) {
rend_cache_failure_entry_free(ent);
MAP_DEL_CURRENT(key);
}
} STRMAP_FOREACH_END;
static void
rend_cache_failure_intro_entry_free_(void *entry)
{
rend_cache_failure_intro_entry_free(entry);
}
